Leaking Crack Repairs

For leaking cracks and joints that are wet or dry it is recommended to use Polyurethane, Acrylate, or Epoxy. Even under pressure leaks are easily sealed at the site of the failure.

Direct injection is the most proven and reliable method for sealing leaking cracks and joints in concrete. Port holes are drilled into the concrete of the affected structure which are then pumped with resins under pressure to ensure they fill the entire space of the crack/joint. This cures to form a solid resin, flexible gel, or high density foam that provides a long lasting seal.

Benefits of Leaking Crack Repair

  • The huge variety of resins available allows all cracks, from hairline to fissure, to be sealed using the system.
  • Effectively seals cracks which are wet or dry.
  • Leaking at pressure cracks and those subject to occasional leaking are also sealed.
  • Can seal active or dormant cracks.
  • Leaking Crack Repair helps to prevent corrosion and concrete spalling by encapsulating the reinforcement steel.
  • Compatible with concrete repair mortars and a range of paints and coatings. Visit High Impact Coatings for more information on our range of paints and coatings.



Common applications of Leaking Crack Repair include:

  • Sealing of leaking cracks in swimming pools.
  • Sealing of leaking cracks and joints in basement and carpark floors, walls, ceilings, and soffits.
  • Sealing of leaking cracks on roofs, terraces, balconies, and walkways.
  • Sealing leaking cracks and joints in tanks, tunnels, manholes, and lift pits.
  • Sealing leaking pipe penetrations.



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